I have just received my Pi 4 and with it an alloy heatsink case with fans and the 3.5" LCD Touch screen.
You can imagine my dismay when I discover that these two accessories do not play well together as they both require the 5v and GND pins for operation.
What effective solution is there for this conundrum.
I think you will need to supply more details.
There are multiple ground pins and 2 5 volt pins
The 3.5” touchscreen totally covers any 5v GPIO pins with its header connector. This means there is no 5 volts pin available for the fan power.
So the touch screen is a hat and yes they take all pins for simplicity.
Maybe this. https://core-electronics.com.au/modmypi-triborg-plus-raspberry-pi-40-pin-gpio-triplicator-unsoldered.html
It looks to me that the header that would plug into the GPIO pins is not long enough to get over the allow heatsink case with fans. I think that it would need an extended header plug.
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